diff options
| author | Greg Ungerer <gerg@uclinux.org> | 2012-01-30 11:58:21 +1000 |
|---|---|---|
| committer | Greg Ungerer <gerg@uclinux.org> | 2012-03-05 09:43:05 +1000 |
| commit | 9657a87205a367bddd802cbf439531697597fd8b (patch) | |
| tree | f3ec0099089044d9146168d9b74ac60aebb539c2 /arch | |
| parent | 43dec91f4dbf4adbd2ffc9a86e34fa76ab1f5a05 (diff) | |
m68k: make support for FPU hardware configurable
The classic m68k code has always supported an FPU (although it may have
been a software emulated one). The non-MMU m68k code has never supported FPU
hardware. To help in merging common code create a configation setting that
signifies if we are builing in FPU support or not.
This switch, CONFIG_FPU, is set as per the current use cases. So it is
always enabled if CONFIG_MMU is set, and disabled otherwise. With a little
extra code it will be possible to disable it on the classic m68k platforms
as well, and to enable it on non-MMU platforms that do have hardware FPU.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/m68k/Kconfig | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 6f823dcc0d7..d318c606c88 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -7,6 +7,7 @@ config M68K select GENERIC_IRQ_SHOW select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS select GENERIC_CPU_DEVICES + select FPU if MMU config RWSEM_GENERIC_SPINLOCK bool @@ -64,6 +65,9 @@ config CPU_HAS_NO_MULDIV64 config CPU_HAS_ADDRESS_SPACES bool +config FPU + bool + config HZ int default 1000 if CLEOPATRA |